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Veroeffentlicht	Quelle	Titel	Severity	CVEs	Kategorie
2021-06-01 00:00	apache_httpd_sec	CVE-2021-26690: Apache HTTP Server versions 2.4.0 to 2.4.46 A specially crafted Cookie header handled by mod_session can cause a NULL pointer dereference and crash, leading to a possible Denial Of Service	-	CVE-2021-26690	vendor_advisory
2021-06-01 00:00	apache_httpd_sec	CVE-2021-30641: Apache HTTP Server versions 2.4.39 to 2.4.46 Unexpected matching behavior with 'MergeSlashes OFF'	-	CVE-2021-30641	vendor_advisory
2021-06-01 00:00	apache_httpd_sec	CVE-2019-17567: Apache HTTP Server versions 2.4.6 to 2.4.46 mod_proxy_wstunnel configured on an URL that is not necessarily Upgraded by the origin server was tunneling the whole connection regardless, thus allowing for subsequent requests on the same connection to pass through with no HTTP validation, authentication or authorization possibly configured.	-	CVE-2019-17567	vendor_advisory
2021-06-01 00:00	apache_httpd_sec	CVE-2020-13938: Apache HTTP Server versions 2.4.0 to 2.4.46 Unprivileged local users can stop httpd on Windows	-	CVE-2020-13938	vendor_advisory
2021-06-01 00:00	apache_httpd_sec	CVE-2020-13950: Apache HTTP Server versions 2.4.41 to 2.4.46 mod_proxy_http can be made to crash (NULL pointer dereference) with specially crafted requests using both Content-Length and Transfer-Encoding headers, leading to a Denial of Service	-	CVE-2020-13950	vendor_advisory
2020-08-07 00:00	apache_httpd_sec	CVE-2020-11993: In Apache HTTP Server versions 2.4.20 to 2.4.43, when trace/debug was enabled for the HTTP/2 module and on certain traffic edge patterns, logging statements were made on the wrong connection, causing concurrent use of memory pools. Configuring the LogLevel of mod_http2 above "info" will mitigate this vulnerability for unpatched servers.	-	CVE-2020-11993	vendor_advisory
2020-08-07 00:00	apache_httpd_sec	CVE-2020-11984: In Apache HTTP Server versions 2.4.32 to 2.4.43, mod_proxy_uwsgi has a information disclosure and possible RCE	-	CVE-2020-11984	vendor_advisory
2020-08-07 00:00	apache_httpd_sec	CVE-2020-11985: For configurations using proxying with mod_remoteip and certain mod_rewrite rules, an attacker could spoof their IP address for logging and PHP scripts. Note this issue was fixed in Apache HTTP Server 2.4.24 but was retrospectively allocated a low severity CVE in 2020.	-	CVE-2020-11985	vendor_advisory
2020-08-07 00:00	apache_httpd_sec	CVE-2020-9490: In Apache HTTP Server versions 2.4.20 to 2.4.43, a specially crafted value for the 'Cache-Digest' header in a HTTP/2 request would result in a crash when the server actually tries to HTTP/2 PUSH a resource afterwards. Configuring the HTTP/2 feature via "H2Push off" will mitigate this vulnerability for unpatched servers.	-	CVE-2020-9490	vendor_advisory
2020-04-01 00:00	apache_httpd_sec	CVE-2020-1934: in Apache HTTP Server versions 2.4.0 to 2.4.41, mod_proxy_ftp use of uninitialized value with malicious FTP backend.	-	CVE-2020-1934	vendor_advisory
2020-04-01 00:00	apache_httpd_sec	CVE-2020-1927: In Apache HTTP Server versions 2.4.0 to 2.4.41 some mod_rewrite configurations vulnerable to open redirect.	-	CVE-2020-1927	vendor_advisory
2019-08-14 00:00	apache_httpd_sec	CVE-2019-10097: When mod_remoteip was configured to use a trusted intermediary proxy server using the "PROXY" protocol, a specially crafted PROXY header could trigger a stack buffer overflow or NULL pointer deference. This vulnerability could only be triggered by a trusted proxy and not by untrusted HTTP clients.	-	CVE-2019-10097	vendor_advisory
2019-08-14 00:00	apache_httpd_sec	CVE-2019-10081: HTTP/2 very early pushes, for example configured with "H2PushResource", could lead to an overwrite of memory in the pushing request's pool, leading to crashes. The memory copied is that of the configured push link header values, not data supplied by the client.	-	CVE-2019-10081	vendor_advisory
2019-08-14 00:00	apache_httpd_sec	CVE-2019-10082: Using fuzzed network input, the http/2 session handling could be made to read memory after being freed, during connection shutdown.	-	CVE-2019-10082	vendor_advisory
2019-08-14 00:00	apache_httpd_sec	CVE-2019-10092: A limited cross-site scripting issue was reported affecting the mod_proxy error page. An attacker could cause the link on the error page to be malfomed and instead point to a page of their choice. This would only be exploitable where a server was set up with proxying enabled but was misconfigured in such a way that the Proxy Error page was displayed. We have taken this opportunity to also remove request data from many other in-built error messages. Note however this issue did not affect them directly and their output was already escaped to prevent cross-site scripting attacks.	-	CVE-2019-10092	vendor_advisory
2019-08-14 00:00	apache_httpd_sec	CVE-2019-10098: Redirects configured with mod_rewrite that were intended to be self-referential might be fooled by encoded newlines and redirect instead to an an unexpected URL within the request URL.	-	CVE-2019-10098	vendor_advisory
2019-08-14 00:00	apache_httpd_sec	CVE-2019-9517: A malicious client could perform a DoS attack by flooding a connection with requests and basically never reading responses on the TCP connection. Depending on h2 worker dimensioning, it was possible to block those with relatively few connections.	HIGH	CVE-2019-9517	vendor_advisory
2019-04-01 00:00	apache_httpd_sec	CVE-2019-0197: When HTTP/2 was enabled for a http: host or H2Upgrade was enabled for h2 on a https: host, an Upgrade request from http/1.1 to http/2 that was not the first request on a connection could lead to a misconfiguration and crash. A server that never enabled the h2 protocol or that only enabled it for https: and did not configure the "H2Upgrade on" is unaffected by this.	-	CVE-2019-0197	vendor_advisory
2019-04-01 00:00	apache_httpd_sec	CVE-2019-0196: Using fuzzed network input, the http/2 request handling could be made to access freed memory in string comparision when determining the method of a request and thus process the request incorrectly.	-	CVE-2019-0196	vendor_advisory
2019-04-01 00:00	apache_httpd_sec	CVE-2019-0220: When the path component of a request URL contains multiple consecutive slashes ('/'), directives such as LocationMatch and RewriteRule must account for duplicates in regular expressions while other aspects of the servers processing will implicitly collapse them.	-	CVE-2019-0220	vendor_advisory
2019-04-01 00:00	apache_httpd_sec	CVE-2019-0211: In Apache HTTP Server 2.4 releases 2.4.17 to 2.4.38, with MPM event, worker or prefork, code executing in less-privileged child processes or threads (including scripts executed by an in-process scripting interpreter) could execute arbitrary code with the privileges of the parent process (usually root) by manipulating the scoreboard. Non-Unix systems are not affected.	HIGH	CVE-2019-0211	vendor_advisory
2019-04-01 00:00	apache_httpd_sec	CVE-2019-0215: In Apache HTTP Server 2.4 releases 2.4.37 and 2.4.38, a bug in mod_ssl when using per-location client certificate verification with TLSv1.3 allowed a client supporting Post-Handshake Authentication to bypass configured access control restrictions.	-	CVE-2019-0215	vendor_advisory
2019-04-01 00:00	apache_httpd_sec	CVE-2019-0217: In Apache HTTP Server 2.4 release 2.4.38 and prior, a race condition in mod_auth_digest when running in a threaded server could allow a user with valid credentials to authenticate using another username, bypassing configured access control restrictions.	-	CVE-2019-0217	vendor_advisory
2019-01-22 00:00	apache_httpd_sec	CVE-2018-17189: By sending request bodies in a slow loris way to plain resources, the h2 stream for that request unnecessarily occupied a server thread cleaning up that incoming data. This affects only HTTP/2 connections. A possible mitigation is to not enable the h2 protocol.	-	CVE-2018-17189	vendor_advisory
2019-01-22 00:00	apache_httpd_sec	CVE-2019-0190: A bug exists in the way mod_ssl handled client renegotiations. A remote attacker could send a carefully crafted request that would cause mod_ssl to enter a loop leading to a denial of service. This bug can be only triggered with Apache HTTP Server version 2.4.37 when using OpenSSL version 1.1.1 or later, due to an interaction in changes to handling of renegotiation attempts.	-	CVE-2019-0190	vendor_advisory
2019-01-22 00:00	apache_httpd_sec	CVE-2018-17199: In Apache HTTP Server 2.4 release 2.4.37 and prior, mod_session checks the session expiry time before decoding the session. This causes session expiry time to be ignored for mod_session_cookie sessions since the expiry time is loaded when the session is decoded.	-	CVE-2018-17199	vendor_advisory
2018-09-25 00:00	apache_httpd_sec	CVE-2018-11763: By sending continous SETTINGS frames of maximum size an ongoing HTTP/2 connection could be kept busy and would never time out. This can be abused for a DoS on the server. This only affect a server that has enabled the h2 protocol.	-	CVE-2018-11763	vendor_advisory
2018-08-14 00:00	apache_httpd_sec	CVE-2016-4975: Possible CRLF injection allowing HTTP response splitting attacks for sites which use mod_userdir. This issue was mitigated by changes made in 2.4.25 and 2.2.32 which prohibit CR or LF injection into the "Location" or other outbound header key or value.	-	CVE-2016-4975	vendor_advisory
2018-07-18 00:00	apache_httpd_sec	CVE-2018-8011: By specially crafting HTTP requests, the mod_md challenge handler would dereference a NULL pointer and cause the child process to segfault. This could be used to DoS the server.	-	CVE-2018-8011	vendor_advisory
2018-07-18 00:00	apache_httpd_sec	CVE-2018-1333: By specially crafting HTTP/2 requests, workers would be allocated 60 seconds longer than necessary, leading to worker exhaustion and a denial of service. This issue only affects servers that have configured and enabled HTTP/2 support, which is not the default	-	CVE-2018-1333	vendor_advisory
2018-03-21 00:00	apache_httpd_sec	CVE-2018-1312: When generating an HTTP Digest authentication challenge, the nonce sent to prevent reply attacks was not correctly generated using a pseudo-random seed. In a cluster of servers using a common Digest authentication configuration, HTTP requests could be replayed across servers by an attacker without detection.	-	CVE-2018-1312	vendor_advisory
2018-03-21 00:00	apache_httpd_sec	CVE-2018-1303: A specially crafted HTTP request header could have crashed the Apache HTTP Server prior to version 2.4.33 due to an out of bound read while preparing data to be cached in shared memory. It could be used as a Denial of Service attack against users of mod_cache_socache.	-	CVE-2018-1303	vendor_advisory
2018-03-21 00:00	apache_httpd_sec	CVE-2017-15710: mod_authnz_ldap, if configured with AuthLDAPCharsetConfig, uses the Accept-Language header value to lookup the right charset encoding when verifying the user's credentials. If the header value is not present in the charset conversion table, a fallback mechanism is used to truncate it to a two characters value to allow a quick retry (for example, 'en-US' is truncated to 'en'). A header value of less than two characters forces an out of bound write of one NUL byte to a memory location that is not part of the string. In the worst case, quite unlikely, the process would crash which could be used as a Denial of Service attack. In the more likely case, this memory is already reserved for future use and the issue has no effect at all.	-	CVE-2017-15710	vendor_advisory
2018-03-21 00:00	apache_httpd_sec	CVE-2017-15715: The expression specified in <FilesMatch> could match '$' to a newline character in a malicious filename, rather than matching only the end of the filename. This could be exploited in environments where uploads of some files are are externally blocked, but only by matching the trailing portion of the filename.	-	CVE-2017-15715	vendor_advisory
2018-03-21 00:00	apache_httpd_sec	CVE-2018-1301: A specially crafted request could have crashed the Apache HTTP Server prior to version 2.4.33, due to an out of bound access after a size limit is reached by reading the HTTP header. This vulnerability is considered very hard if not impossible to trigger in non-debug mode (both log and build level), so it is classified as low risk for common server usage.	-	CVE-2018-1301	vendor_advisory
2018-03-21 00:00	apache_httpd_sec	CVE-2018-1302: When an HTTP/2 stream was destroyed after being handled, the Apache HTTP Server prior to version 2.4.33 could have written a NULL pointer potentially to an already freed memory. The memory pools maintained by the server make this vulnerabilty hard to trigger in usual configurations, the reporter and the team could not reproduce it outside debug builds, so it is classified as low risk.	-	CVE-2018-1302	vendor_advisory
2018-03-21 00:00	apache_httpd_sec	CVE-2018-1283: When mod_session is configured to forward its session data to CGI applications (SessionEnv on, not the default), a remote user may influence their content by using a "Session" header. This comes from the "HTTP_SESSION" variable name used by mod_session to forward its data to CGIs, since the prefix "HTTP_" is also used by the Apache HTTP Server to pass HTTP header fields, per CGI specifications. The severity is set to Moderate because "SessionEnv on" is not a default nor common configuration, it should be considered more severe when this is the case though, because of the possible remote exploitation.	-	CVE-2018-1283	vendor_advisory
2018-03-19 10:00	security_insider	Was ist eine CA?	-	—	security_news
2018-02-21 10:00	security_insider	Was ist Kali Linux?	-	—	security_news
2018-01-22 14:40	security_insider	Was ist eine demilitarisierte Zone?	-	—	security_news
2017-09-18 00:00	apache_httpd_sec	When an unrecognized HTTP Method is given in an <Limit {method}> directive in an .htaccess file, and that .htaccess file is processed by the corresponding request, the global methods table is corrupted in the current worker process, resulting in erratic behaviour. This behavior may be avoided by listing all unusual HTTP Methods in a global httpd.conf RegisterHttpMethod directive in httpd release 2.4.25 and later. To permit other .htaccess directives while denying the <Limit > directive, see the AllowOverrideList directive. Source code patch (2.4) is at; CVE-2017-9798-patch-2.4.patch Source code patch (2.2) is at; CVE-2017-9798-patch-2.2.patch Note 2.2 is end-of-life, no further release with this fix is planned. Users are encouraged to migrate to 2.4.28 or later for this and other fixes.	-	CVE-2017-9798	vendor_advisory
2017-07-11 00:00	apache_httpd_sec	CVE-2017-9789: When under stress, closing many connections, the HTTP/2 handling code would sometimes access memory after it has been freed, resulting in potentially erratic behaviour.	-	CVE-2017-9789	vendor_advisory
2017-07-11 00:00	apache_httpd_sec	CVE-2017-9788: The value placeholder in [Proxy-]Authorization headers of type 'Digest' was not initialized or reset before or between successive key=value assignments. by mod_auth_digest. Providing an initial key with no '=' assignment could reflect the stale value of uninitialized pool memory used by the prior request, leading to leakage of potentially confidential information, and a segfault.	-	CVE-2017-9788	vendor_advisory
2017-06-22 13:00	security_insider	Was ist ein Security Operations Center?	-	—	security_news
2017-06-19 00:00	apache_httpd_sec	CVE-2017-3169: mod_ssl may dereference a NULL pointer when third-party modules call ap_hook_process_connection() during an HTTP request to an HTTPS port.	-	CVE-2017-3169	vendor_advisory
2017-06-19 00:00	apache_httpd_sec	CVE-2017-3167: Use of the ap_get_basic_auth_pw() by third-party modules outside of the authentication phase may lead to authentication requirements being bypassed. Third-party module writers SHOULD use ap_get_basic_auth_components(), available in 2.2.34 and 2.4.26, instead of ap_get_basic_auth_pw(). Modules which call the legacy ap_get_basic_auth_pw() during the authentication phase MUST either immediately authenticate the user after the call, or else stop the request immediately with an error response, to avoid incorrectly authenticating the current request.	-	CVE-2017-3167	vendor_advisory
2017-06-19 00:00	apache_httpd_sec	CVE-2017-7659: A maliciously constructed HTTP/2 request could cause mod_http2 to dereference a NULL pointer and crash the server process.	-	CVE-2017-7659	vendor_advisory
2017-06-19 00:00	apache_httpd_sec	CVE-2017-7668: The HTTP strict parsing changes added in 2.2.32 and 2.4.24 introduced a bug in token list parsing, which allows ap_find_token() to search past the end of its input string. By maliciously crafting a sequence of request headers, an attacker may be able to cause a segmentation fault, or to force ap_find_token() to return an incorrect value.	-	CVE-2017-7668	vendor_advisory
2017-06-19 00:00	apache_httpd_sec	CVE-2017-7679: mod_mime can read one byte past the end of a buffer when sending a malicious Content-Type response header.	-	CVE-2017-7679	vendor_advisory
2017-02-02 09:30	security_insider	Was bedeutet Netzwerksicherheit?	-	—	security_news